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[NISM X-B]

The Ultra-HNI Advisory Blueprint: Solved Comprehensive Case Study for NISM Series X-B (Taxation, Retirement & Family Trusts)

NISM Prep Research & Editorial Team·2026-08-20

Case Overview: Rajesh Singhania's Wealth Transition

Rajesh has eight years before retirement and one decision that's worth more than anything else on his balance sheet: which capital-gains regime he elects on a commercial property he's held for a decade. Get it wrong and he hands over ₹6.3 lakh more than he needs to. Rajesh (52) is the founder of an industrial automation firm in Hyderabad. He plans to retire at age 60 and transition family assets to his spouse (48) and two children (22 and 18).

Asset Portfolio & Transaction Pipeline:

  1. Ancestral Commercial Property Sale: Acquired in May 2014 for ₹1,00,00,000 (₹1.00 Crore) (CII for FY14-15 = 240). Sold in August 2024 for ₹3,20,00,000 (₹3.20 Crore) (CII for FY24-25 = 363). Transfer brokerage = ₹2,00,000.
  2. Private Family Trust Structuring: Rajesh establishes an Irrevocable Discretionary Family Trust with ₹5.00 Crore corpus generating ₹40,00,000 interest and ₹20,00,000 long-term capital gains annually. (In plain terms: a trust is a separate legal box that holds assets on behalf of named beneficiaries — "irrevocable" means Rajesh can't simply take the assets back once transferred, and "discretionary" means the trustee decides how much each beneficiary receives and when, rather than fixed shares being locked in upfront. HNIs use this structure to control how wealth passes to the next generation, and to ring-fence assets from an individual beneficiary's personal creditors or disputes.)

Section 1: Real Estate Grandfathered Indexation Comparison (Post-Budget 2024)

Under the amended Section 112 provisions for immovable property purchased prior to 23rd July 2024, Rajesh can choose between Option A (12.5% without indexation) and Option B (20.0% with indexation).

In plain terms: "indexation" means adjusting your original purchase price upward for inflation before calculating your taxable gain, using the government's Cost Inflation Index (CII) — so you're only taxed on the gain in real, inflation-adjusted terms, not on the part of the price rise that was just currency losing value over a decade. Before Budget 2024, this was almost always the cheaper route on real estate. The 2024 amendment now gives owners of pre-July-2024 property a one-time choice between the old indexed 20% rate and a new flat 12.5% rate with no indexation — and, as this case shows, the flat rate doesn't automatically win.

Computation:

  • Net Consideration: ₹3,20,00,000 - ₹2,00,000 = ₹3,18,00,000.

Option A: 12.5% Flat Rate without Indexation

  • LTCG = ₹3,18,00,000 - ₹1,00,00,000 = ₹2,18,00,000.
  • Tax @ 12.5% = ₹2,18,00,000 × 12.5% = ₹27,25,000.
  • Total with 4% Cess = ₹27,25,000 × 1.04 = ₹28,34,000.

Option B: 20.0% Rate with Indexation Benefits

  • Indexed Cost of Acquisition = ₹1,00,00,000 × (363 / 240) = ₹1,51,25,000.
  • Indexed LTCG = ₹3,18,00,000 - ₹1,51,25,000 = ₹1,66,75,000.
  • Tax @ 20.0% = ₹1,66,75,000 × 20% = ₹33,35,000.
  • Total with 4% Cess = ₹33,35,000 × 1.04 = ₹34,68,400.

Advisory Verdict: This is exactly the comparison the 2024 amendment forces on anyone holding property bought before 23rd July 2024 — indexation used to be the automatic better choice; now it often isn't. Option A (12.5% without indexation) yields a tax saving of ₹6,34,400 (₹34,68,400 - ₹28,34,000) over Option B here. Rajesh should opt for the new 12.5% flat rate — but that verdict flips on other holding periods, so it's worth re-running both options rather than assuming the new regime always wins.

Section 2: Section 54F Capital Gain Exemption Optimization

If Rajesh reinvests ₹2.00 Crore into a new residential house within 2 years, how much capital gain is exempt under Section 54F?

In plain terms: Section 54F lets you shield capital gains from tax by reinvesting the sale proceeds into a residential house — but only in proportion to how much of the total sale amount you actually reinvest. Put the whole amount back into a house and the whole gain is exempt; put half back in, and only half the gain is exempt. That proportion is exactly what the formula below calculates.

Section 54F Exemption=LTCG×Amount ReinvestedNet Sale Consideration\text{Section 54F Exemption} = LTCG \times \frac{\text{Amount Reinvested}}{\text{Net Sale Consideration}}
Exemption=₹2,18,00,000×₹2,00,00,000₹3,18,00,000=₹1,37,10,692\text{Exemption} = ₹2{,}18{,}00{,}000 \times \frac{₹2{,}00{,}00{,}000}{₹3{,}18{,}00{,}000} = ₹1{,}37{,}10{,}692
  • Net Taxable LTCG: ₹2,18,00,000 - ₹1,37,10,692 = ₹80,89,308.
  • Reduced Tax Payable: ₹80,89,308 × 12.5% × 1.04 = ₹10,51,610 (saving over ₹17.8 Lakhs in taxes!).

Practice this

Test this against real, worked NISM Series X-B questions in the question archive, or take the free first mock on the certifications catalog.